Write a toolbox talk on shock protection

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# ARC FLASH HAZARDS (cont.) ## HOW CAN YOU PROTECT YOURSELF FROM THE HAZARDS OF ARC FLASH? (cont.) • De-energizing would create a more significant hazard, or it is necessary for the interests of health and safety that the electrical work is carried out while the equipment is energized (e.g., it may be required for life-saving equipment to remain energized and operating while electrical work is carried out on the equipment). • It is necessary that the electrical equipment to be worked on is energized for the work to be carried out correctly. • It is necessary for testing or troubleshooting. • There is no reasonable alternative means of carrying out the work. ## NOTE: USE APPROPRIATE LOCKOUT, TAGOUT, AND HAZARDOUS ENERGY CONTROL PROCEDURES TO ISOLATE ENERGIZED EQUIPMENT WHEN A CIRCUIT BREAKER OR OTHER DISCONNECT TURNED OFF. THE BEST ARC FLASH PROTECTION IS TO DE-ENERGIZE EQUIPMENT BEFORE WORKING ON IT! IS Second Best Choice for Arc Flash Protection: Use appropriately rated personal protective equipment (PPE). Arc flash personal protective equipment (PPE) is a combination of clothing and safety equipment worn for protection from arc flash and shock hazards by a person performing electrical work. Primarily, arc flash PPE is divided into the following subgroups: • Head, face, neck, and chin protection • Eye protection • Hearing protection • Body protection • Hand and arm protection • Foot and leg protection ## GENERAL ELECTRICAL SAFE WORK PRACTICES All employees working on or near electrical equipment shall follow general safe work practices, including: • Maintain housekeeping procedures in the work area, e.g., prevent slip trips and falls; eliminate fire hazards; control dust; prevent falling hazards; clear clutter. • Plan and analyze each step of a work task to ensure safety. • - Maintain appropriate work boundaries for qualified electrical workers (QEW) and unqualified workers. • Use properly rated and tested test equipment (e.g., multimeter). …

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WORKER HEALTH AND SAFETY ⑪FACT SHEET Ground-fault Circuit OSHA Oregon OSHA Interrupters (GFCI) OAR 437 - Division 3/K Department of Consumer and Business Services # Division 3, Construction, General Requirements ## Ground-Fault Circuit Interrupters OAR [redacted phone], Branch Circuits, requires ground-fault circuit interrupters (GFCIs) on all 125-volt, single-phase, 15-, 20-, and 30-ampere receptacles that are not part of the permanent wiring of a building or structure. If a permanently wired receptacle (not equipped with GFCI protection) is used for temporary electric power in a construction project, GFCI protection must be provided at the user end. Portable plug-in and cord- type GFCIs are probably the most practical devices for construction workers who use cord sets for temporary power when there is no protection at the source. (Protection is a function or state, not a piece of equipment. If there is effective protection for the worker, the location of the equipment that provides the protection is not important.) ## GFCI Protection GFCIs are life-saving devices that protect people from electrocution. Under normal conditions, electrical current moving through a circuit flows at the same rate (amperage) all along the circuit; amperage flowing away from the electrical source should be the same amperage returning to the source. GFCIs sense imbalances or differences along the electrical circuit and shut it down when needed. For this reason, GFCI can be critical to workers in wet environments. The rule for GFCI does not exempt work with intrinsically safe or double insulated tools. ## What Employers Must Do You must protect employees from electrocution using ground-fault circuit interrupters using one of the following methods: built into the overall circuit, as part of the outlet receptacle, or using protected cord sets or GFCI devices. ## GFCI Fact GFCI protection may be anywhere on the circuit as long as it works effectively to protect the worker.…

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# Electrical Safety Protecting Employees from Electrical Hazards Electrical Safety focuses on preventing electrocution and other electrical hazards by establishing standards for electrical equipment, work practices, and training, with a strong emphasis on lockout/tagout procedures and safe distances from energized lines. Injury Free Culture IF? What IF I could go my entire career Injury Free? Injury Free is a cultural attitude. It is a way of thinking that prevents injuries, makin safety a high priority at both the personal and organizational levels. ## Common Causes of Electrocution . Contact with Overheard Power lines • Contact with Live Circuits [redacted email] • Not following Lock/Tag-out procedures - Poorly Maintained Extension Cords • Defective Power Tools ## Shock Severity ## Arc Blast/Flash When an arc fault occurs, the result is a massive electrical explosion. The light and heat emitted by the explosion is known as the arc flash, and the pressure wave is known as the arc blast. Low voltages can be extremely dangerous because, all other factors being equal, the degree of injury increases the longer the body is in contact with the circuit. ## Lockout/Tagout (LOTO) Lockout-tag-out (LOTO) is a safety procedure which is used in industry to ensure that dangerous machines are properly shut off and not able to be started up again prior to the completion of maintenance or servicing work. • Place Lock & Tag on each disconnecting means used to de-energize circuits • Attach a lock to prevent operating the disconnecting means • Place a Tag with each lock • Only the person who places the lock may remove it ## Electrical Standards VOSH's electrical standards are based on the National Fire Protection Association Standards NFPA 70, National Electric Code, and NFPA 70E, Standard for Electrical Safety for Employee Workplaces. ## Training Employees must receive adequate training on electrical safety procedures and hazards. Qualified employ…

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# Arc Flash (cont.) ## What elements should be considered when doing an arc flash risk assessment? (cont.) Whenever possible, do not work on energized equipment. Always follow lockout/tagout procedures as part of a hazardous energy control program. Other protective measures include: - Making sure conductors and circuit parts are in a safe working condition - Using lower energy equipment or current energy limiting devices - Guarding energized electrical conductors and circuit parts - Using arc flash approach boundaries, including barricades - Increasing the working distance - Using non-contact instruments or procedures, where possible - Using non-sparking tools - Implementing work permits, safe work procedures, and job planning - Posting signs alerting of the hazards - Wearing shock and arc flash personal protective equipment (PPE) ## What would be included in preventive maintenance? Preventive maintenance includes: - Regular inspection for wear and tear of insulation, corrosion, poor connections, overheated electrical conductors, excessive pitting of contacts, or excessive moisture, water, or ice on the equipment. - Regular measurements of critical components. - Routine inspections of circuit breakers and relays (develop a testing schedule based on the manufacturer's instructions or the InterNational Electrical Testing Association (NETA) guidelines). - Follow established maintenance requirements, including a parts replacement schedule. - Keep electrical drawings current. ## What are approach boundaries? Boundaries are used to limit how close workers and others should be to the equipment or circuits, especially when work is being done. Arc Flash CCOHS